See the following for more information:
Discovering and Adding Host and Non-Host Targets for the concepts around discovering and adding targets.
Discovering, Promoting, and Adding System Infrastructure Targets for how to discover operating systems and other system infrastructure targets.
Managing Storage for more details about viewing a host's storage filesystems and viewing storage information.
View Network Details of a Host Target for more information about the types of information that are available.
Using Incident Management for details on managing incidents.
http://docs.oracle.com/en/operating-systems/ for the following:
Oracle Solaris documentation
Oracle Linux documentation